163303134420 has 24 divisors (see below), whose sum is σ = 457248776544. Its totient is φ = 43547502496.

The previous prime is 163303134419. The next prime is 163303134479. The reversal of 163303134420 is 24431303361.

It is a super-2 number, since 2×163303134420² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360859394 + ... + 1360859513.

It is an arithmetic number, because the mean of its divisors is an integer number (19052032356).

Almost surely, 2^163303134420 is an apocalyptic number.

163303134420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163303134420 is an abundant number, since it is smaller than the sum of its proper divisors (293945642124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163303134420 is a wasteful number, since it uses less digits than its factorization.

163303134420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721718919 (or 2721718917 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 163303134420 its reverse (24431303361), we get a palindrome (187734437781).

The spelling of 163303134420 in words is "one hundred sixty-three billion, three hundred three million, one hundred thirty-four thousand, four hundred twenty".